I was using my S3D system earlier today without a problem.
However when I restarted it a short time ago I was greeted by a dialog gthat the maximum number of licenses had been reached. I popped over to the deactivate web page - and when I tried to deactivate a license it told me that deactivation was not currently available on my account, and that I should contact support. I did so, but so far no response.
So I've now got a broken S3D installation where S3D won't start, and I cannot use my 3D printer.
This licensing arrangement seems to be problematical. I hadn't made any changes either within S3D or on the web site to cause S3D to lose it's licensed status.